Pseudo-umbilical

This near-term gray reef pup bears a pseudo-umbilical cord that connects the young shark to maternal tissue.

Between these two options, lies a third: a pseudo-umbilical linkage: “I toyed briefly with the idea of attaching him to me by means of a long rope, its two ends tied about our waists.

If there exists a function X on the submanifold M such that (h(x, y), H) = X(x, y) for any vector fields x and y on M, then M is called a pseudo-umbilical submanifold.